The H+ was not designed for mapping and while it is virtually identical to the H520 in form it lacks the software necessary to run automated survey flight plans. I had seen reports of people using CCC editor to upload similar type missions, but there will be no automation in the creation process nor any guarantee that the characteristics needed to ensure a good 3D map have been achieved. I am a mapper and have an H520's myself so hopefully someone who has an H+ will come along and have better news. There is another solution called UAV Toolbox that I have seen mentioned, but it was originally designed for the standard H and I am not sure if it ever made it to the H+ or not. At the end of the day in mapping the basic factor that you want to achieve a 70-75% overlaps on pictures as if you were spray painting a canvas and it really doesn't matter how you achieve that. I can tell you that equates to about 14mph with a picture every 2 seconds at 220ft AGL if you were to do it manually.
Once you have the images you can upload them to pretty much any processing software to make your model. it will be personal preference and according to your business model as to whether it would be best to go with a cloud service or to purchase a program for your computer. If you don't already have a gaming rig you will need to get one if you want to run the software yourself.